EP1571014A2 - Fahrzeug-Anfahrhilfe - Google Patents
Fahrzeug-Anfahrhilfe Download PDFInfo
- Publication number
- EP1571014A2 EP1571014A2 EP05000088A EP05000088A EP1571014A2 EP 1571014 A2 EP1571014 A2 EP 1571014A2 EP 05000088 A EP05000088 A EP 05000088A EP 05000088 A EP05000088 A EP 05000088A EP 1571014 A2 EP1571014 A2 EP 1571014A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- axle
- level
- calibration
- vehicle
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/04—Spring characteristics, e.g. mechanical springs and mechanical adjusting means fluid spring characteristics
- B60G17/052—Pneumatic spring characteristics
- B60G17/0521—Pneumatic spring characteristics the spring having a flexible wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
- B60G17/016—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
- B60G17/0164—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input mainly during accelerating or braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G5/00—Resilient suspensions for a set of tandem wheels or axles having interrelated movements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
- B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
- B62D61/125—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels the retractable wheel being a part of a set of tandem wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/412—Pneumatic actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/02—Trucks; Load vehicles
- B60G2300/026—Heavy duty trucks
- B60G2300/0262—Multi-axle trucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/04—Trailers
- B60G2300/042—Semi-trailers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/40—Variable track or wheelbase vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/50—Pressure
- B60G2400/51—Pressure in suspension unit
- B60G2400/512—Pressure in suspension unit in spring
- B60G2400/5122—Fluid spring
- B60G2400/51222—Pneumatic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/60—Load
- B60G2400/61—Load distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/18—Starting, accelerating
- B60G2800/182—Traction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/21—Traction, slip, skid or slide control
- B60G2800/214—Traction, slip, skid or slide control by varying the load distribution
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
- B60G2800/914—Height Control System
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2800/00—Indexing codes relating to the type of movement or to the condition of the vehicle and to the end result to be achieved by the control action
- B60G2800/90—System Controller type
- B60G2800/91—Suspension Control
- B60G2800/915—Suspension load distribution
Definitions
- the invention relates to a device for control the axle load of vehicles according to the generic term of claim 1
- Such axle load control device is known from EP 0 411 352 B1, which serves as start-up aid for luftgefederte multi-axle vehicles is used in which at the Axles via valve means supplied with compressed air Air bellows are provided. Besides at least one Drive axle (drive axle) is at least one liftable Additional axle provided. To activate the traction help the air spring bellows of the additional axle are complete vented, and if necessary, the additional axle is additional lifted over a lift device, causing the thereby released axle load additionally on the drive axle is transmitted, so the axle load of the drive axle to increase. When reaching the maximum axle load on the drive axle is about one with a Heilfederbalg the drive axle connected pressure switch the Circuit to the axle load displacement effecting Solenoid valves interrupted.
- the invention is therefore based on the object, a To improve traction so that they at each Level height meets the legally permissible specifications.
- the invention has the advantage that in the traction aids axle load shift always correct, the real one Loading the corresponding axes into account become; with the invention is further the Disadvantage of the height dependence of the axle load shift eliminated in the traction aid according to the prior art.
- a development of the invention has the advantage that also changing at a level height change Lifting / carrying capacity characteristic of the air spring bellows the determination of traction help is taken into account.
- a subsequent development of the invention has the advantage that different lifting / capacity characteristics considered by different bellows constructions can be.
- a development of the invention has the advantage that specific maximum for different countries Axle loads are adjustable by parameter; based on that can according to further developments of the Invention for the drive axle during traction applicable maximum axle load advantageously with a country-specific temporal and / or speed-dependent Limitation.
- suitable vehicle according to Fig. 1 is at least a relieving axis (35) for taking over a Lastanteils provided with heavily laden vehicle; this axis and at least the drive axis (34, with Pivot arrow) of the vehicle are as Kunststoffgefederte axes each with at least one, the vehicle body over the axle supporting air spring bellows (2a, 2b) after Fig. 2 is formed.
- At least these axes (35, 34) are with an electronic level control device equipped with the help of which a target level, namely a predeterminable distance between the vehicle body and the axes, as actual level regardless of change Loading is complied with.
- At least the Drive axle and the at least one unloadable axle (35) equipped with a load sensing device, by, as explained below, in the at least one air spring bellows provided for an air-suspended axle prevailing air pressure is measured by sensor means.
- the intended for the traction help vehicle can either as a single vehicle or as a towing vehicle one Vehicle train consisting of towing vehicle and trailer vehicle, be trained, according to the embodiment Fig. 1 consists of this vehicle from the towing vehicle (37), with the trailer designed as a trailer (38) is coupled.
- the towing vehicle is as 6x2 vehicle designed, it has a front axle (33) and the axes explained above, namely the unloadable axle (35) and the drive axle (34).
- the unloadable axis (35) is in the embodiment between the drive axle (34) and the front axle (33), she is trained as a lift axle and in Fig.
- the unloadable axis can alternatively also as Trailing be executed; a relieving axle Can be in the direction of travel both before and behind the Drive axis are classified (compared to a Towing axle has a lift axle still over at least one, usually pneumatic lift cylinder).
- the trailer (38) is in the embodiment with a fixed axis (36) equipped.
- a traction help serves to increase the traction of the Towing vehicle (37) when starting, if at unfavorable Friction ratio of the road surface (low ⁇ friction coefficients at z. B. wet or ice) from the wheels of the drive axle (34) propulsive power transferable to the roadway when starting is exceeded and at least one wheel the drive shaft (34) begins to spin:
- the axle load on the drive axle (43) increased by, as indicated by an arrow (39), by relieving the unloaded axle (35) a Axle load displacement to the drive axle (34) takes place.
- the axle load of an axle represents this axle load weight force exerted by the vehicle body on the relevant axle; for an air-suspended axle, the axle load weight force is determined by the product of the air pressure p L prevailing in the air spring bellows associated with that axle and the sum A w of the actual surfaces (effective effective surface area at that level) of those air spring bellows.
- the need to activate the traction help occurs when, when starting one or both wheels of Drive shaft (34) of the towing vehicle (37) begin to spin and then becomes a traction increase request to a tractor control unit responsible for the traction help provided either by the Driver with actuation of a corresponding switch, or automatically by a z. B. as ABS / ASR control unit trained, the slippage of the drive shaft (34) the towing vehicle (37) monitoring electronic Control unit takes place when they start spinning recognizes and z. B. via suitable data bus means the traction increase request as a message to the Towing vehicle control unit provides.
- the current Axle loads for the drive axle (34) and for the Releasable axis (35) determined.
- the pressure in the relief bellows associated with the unloadable axle (35) is reduced and the reduction of the load released by the reduction is transmitted to the drive axle (34); by the axle load shift (39) so on the drive axle (34) resting axle load is increased.
- the axle load displacement (8) which is carried out in temporal steps, it is continuously checked by force comparison, ie after each step, whether the maximum permissible axle load of the drive axle (34) is undershot, reached or exceeded.
- the axle load shift (39) is performed only to a maximum of the condition that the maximum permissible axle load of the drive axle (34) is complied with, and then the axle load shift (39) is terminated: At the drive axle (34) is now the maximum permissible axle load weight adjusted for the starting aid traction increase.
- the towing vehicle control unit with valve means for ventilation, with the bellows and the pressure-sensing means for the unloadable Axis (35) forms a control loop through which a specified for this axis setpoint of the axle load weight is set as the actual value.
- a specified for this axis setpoint of the axle load weight is set as the actual value.
- the Triebachse (34) associated sensor measuring the on the axle (34) determined axle load determined; of the There first measured pressure is also in a Axle load weight converted, and then the above explained force comparison performed after the either the axle load shift is finished, or still further steps of axle load shifting required are.
- These country-specific axle loads are parameterized stored in the memory of the towing vehicle control unit and be in the respective country via a manual or automatically controlled via GPS position detection Selection device for carrying out the traction help in this country.
- this represents the display vehicle axle
- the display vehicle axle is the unloadable axle (35) for determining the axle load weights for the unloadable axle (35);
- the calibration axis correction functions assigned to the axle (34) and the loadable axle (35) are respectively assigned to these axles, as explained below for an exemplary display vehicle axle.
- Fig. 2 are two typical embodiments of Fig. 2a shows an air spring bellows (2a) in the embodiment as a bellows, and Fig. 2b shows an embodiment as a rolling bellows (2b); both bellows are presented in a state in which they are through the above-mentioned effect of electronic Level control device with a certain amount of air are filled to comply with the actual level.
- the effective diameter D W (3) varies both statically with the height of the actual level and dynamically with the rebound and rebound, starting from a selected actual level (bellows spring characteristic). That this level influence is different for both types of bellows is spontaneously apparent from the comparison of the two types of bellows in FIG. 2;
- the flexible bellows (2b) arched level-dependent on the support element (4), so that also results in a level-height-dependent change in the effective diameter D W (3b).
- the level height influence on the effective diameter D W (3) and thus on the effective area A W of an air spring bellows (2) is thus dependent on the type of bellows; the invention is applicable to a level influence on the effective area of a bellows of any kind, and the nature of this influence for the application of the invention need not be known.
- the axle load weight F (1) is determined according to formula [2];
- a specific calibration level h O is defined for the actual level (5), and for this calibration level there is a specific effective area A WO , which represents a calibration area.
- a WO represents a calibration area.
- the calibration level z. B. the normal level of the vehicle to be selected for the ride; alternatively it is z. B. also possible to provide the smallest actual level as a calibration level.
- the invention is based on a specific axle load characteristic curve for the respective display vehicle axle, namely a characteristic curve which describes the axle load weight force F (1) above the bellows pressure p L.
- axle load characteristics may be calculated based on the characteristics of the air bags used and the mechanical dimensions established for the selected design (essentially those of the linkages) of axle and vehicle body. Alternatively, this axle load characteristic can also be detected metrologically, as shown in the drawing Fig. 3.
- the vehicle is driven on an axle load scale such that the two wheels of the display vehicle axle are free on the left and right weighing platforms of the axle load scale. Then z.
- load eg., Cement weight plates
- the axle load weight F (1) determined by the axle load balance and the pressure p L in the air spring bellows are entered in the F / p L diagram, as shown in FIG. 3.
- the minimum pressure at which an air spring bellows is just filled so far to prevent its mechanical destruction and the lowest possible axle load weight F 0 is exerted on the air spring bellows in this state is, in the example According to Fig. 3, in five steps (11, 12, 13, 14, 15), the load gradually increased and the measuring points F x of each measured axle load weights are applied over the corresponding set bellows pressures p x , so that in the uppermost measurement stage (15) the permissible total weight for the vehicle axle is effective and, accordingly, the maximum permissible axle load weight force F z_G acts on the air spring bellows (2) with the maximum permissible pressure p z_G .
- axle load characteristic (8) By averaging from the axle load characteristic branch (6) for increasing pressure and the axle load curve branch (7) For falling pressure results in the axle load characteristic (8) as a basis for determining the axle load weight F (1) according to the invention. It should be added that the gradual lifting (10 to 15) and the Gradual lowering (16 to 20) also carried out several times can be used to measure errors due to hysteresis and the accuracy of the axle load characteristic curve (8) increase; Of course, to increase accuracy even more than 5 levels are chosen while with reduced accuracy requirements too less than 5, z. B. 3 levels can be selected.
- the axle load characteristic (8) as an average characteristic between the characteristic branches (6) and (7) represents with good approximation a straight line piece between the smallest force F 0 at the pressure p 0 and the maximum permissible force F z_G at the pressure p z_G .
- the effective area A W is present, which is determined by means of a correction function from the calibration area A W0 .
- This calibration area correction function k describes the dependence of the effective area A W of the air suspension bellows assigned to the display vehicle axle on this current actual level h of the vehicle body. For the correction of the calibration area A W0 then the current actual level h is used in the calibration area correction function k.
- this calibration area correction function k (9) is advantageously designed as a ratio of the effective area A W of the air spring bellows to the calibration area A W0 ; on the ordinate is the correction function k, and on the abscissa the level h is plotted.
- FIG. 4 shows a calibration area correction function k (9) with a comparatively complex level influence.
- the calibration level h 0 is initially set after loading the display vehicle axle with the specified load on the display vehicle axle. At this load, starting from the calibration height h 0 , the level height is then reduced once to the minimum height h min by reducing or increasing the air spring bellows pressure p L and once increased to the maximum level height h max ; for each set level height h the air spring bellows pressure p L is measured and with the onset of this pressure p L in formula [7] the value k of the calibration surface correction function (9) according to FIG. 4 results for this current level height h. The combination of all correction values k thus determined above the height h of the level gives the curve (9) of the calibration surface correction function according to FIG. 4.
- the Calibration area correction function (9) also by a Traverse (10a or 10b) from straight sections (21, 22 or 23, 24, 25, 26) are approximated.
- two straight line sections (21, 22) are provided, wherein for the first interpolation point (27) of the surface calibration value for the first straight line section (21) the minimum level height h min and for the second interpolation point ( 28) of the surface calibration value (numerical value "1"), the calibration height h 0 is selected. Similarly, for the first interpolation point (28) of the surface calibration value of the second straight line section (22), the calibration height h 0 and for the second interpolation point of the surface calibration value, the maximum level height h max is selected.
- the simplified polygon (10a) with the two straight sections (21, 22) by measuring the air bag pressure at only two other level heights, namely at the minimum level height h min and at the maximum level height h max determinable. Because the minimum and maximum level heights limit positions and optionally represent are not exactly adjusted, can take their a level in the range of the minimum and maximum level height h min and h max can be set.
- the two further interpolation points (30 and 31) are provided in addition to the interpolation points (27, 28, 29) of the surface calibration values whose current height levels z. B. approximately in the middle of the areas between the minimum level height h min and the calibration height h 0 or between the calibration height h 0 and the maximum level height h max are.
- the traverse is therefore formed from the four straight sections (23, 24, 25, 26) and provides a better approximation compared to the traverse (10a).
- the accuracy is improved by introducing only two further points with the total of five interpolation points, the traverse (10b) approximates to a correction surface correction function (9) with its comparatively complex level influence with very good accuracy.
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Abstract
Description
- Fig. 1
- Die Funktion der Anfahrhilfen-Traktionserhöhung durch Verlagerung von Achslast am Beispiel eines Zugfahrzeugs;
- Fig. 2
- für luftgefederte Achsen verwendete Luftfederbälge in zwei typischen Ausbildungen;
- Fig. 3
- eine messtechnisch ermittelte Achslastkennlinie für die Luftfederbälge einer luftgefederten Achse;
- Fig. 4
- eine Funktion zur Korrektur einer zur Achslastbestimmung verwendeten Kalibrierfläche eines Luftfederbalgs über dem aktuellen Ist-Niveau des Fahrzeugaufbaus.
Claims (12)
- Verfahren zur Steuerung einer Anfahrhilfe in einem Fahrzeug, das entweder als Einzelfahrzeug oder als Zugfahrzeug (37) eines Fahrzeugzugs aus Zugfahrzeug und Anhängefahrzeug ausgebildet ist, bei welchem neben einer Triebachse (34) mindestens eine entlastbare Achse (35) vorgesehen ist, wobei mindestens die Triebachse (34) und die mindestens eine entlastbare Achse (35) als luftgefederte Achsen mit jeweils mindestens einem, den Fahrzeugaufbau über der Achse abstützenden Luftfederbalg (3a, 3b) ausgebildet sind, und die Trieb- und entlastbaren Achsen(34, 35) weiter über eine Lastsensierungseinrichtung verfügen, wobei ein Soll-Niveau, nämlich ein vorgegebener Fahrzeugaufbau-Achsen-Abstand, durch eine elektronischen Niveauregeleinrichtung als Ist-Niveau eingehalten wird, mit folgenden Schritten:a) Nach Vorliegen einer Traktionserhöhungs-Anforderung werden in einem ersten Schritt die aktuellen Achslasten für die Triebachse (34) und die mindestens eine entlastbare Achse (35) bestimmt;b) in einem zweiten Schritt wird geprüft, ob die aktuelle Achslast der Triebachse (34) kleiner ist als ihre zulässige maximale Achslast;c) ist die aktuelle Achslast der Triebachse (34) nicht kleiner als ihre maximale Achslast, so wird keine Aktivierung der Traktionserhöhung vorgenommen;d) ist die aktuelle Achslast kleiner als die maximale Achslast, so wird in einem dritten Schritt die Traktionserhöhung aktiviert und es wird eine Entlastung (39) der mindestens einen entlastbaren Achse (35) vorgenommen;
die aktuellen Achslasten für die Triebachse (34) und die mindestens eine entlastbare Achse (35) als Achslast-Gewichtskräfte bestimmt werden und die Entlastung der mindestens einen entlastbaren Achse (35) als Kraftregelung durchgeführt wird. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Achslast-Gewichtskraft für eine Achse, eine Anzeige-Fahrzeugachse (34, 35), durch den Druck (pL) in den der Achse zugeordneten Luftfederbälgen (3a, 3b) und durch die wirksame Fläche (AW) dieser, der Achse zugeordneten, Luftfederbälge bestimmt wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass die Achslast-Gewichtskraft für die Anzeige-Fahrzeugachse (34, 35) durch das Produkt aus dem Druck (pL) in den der Achse zugeordneten Luftfederbälgen (3a, 3b) und der wirksame Fläche (AW) dieser, der Anzeige-Fahrzeugachse (34, 35) zugeordneten, Luftfederbälgen bestimmt wird.
- Verfahren nach Anspruch 3, gekennzeichnet durch die folgenden Merkmale:a) Für die Bestimmung der wirksamen Fläche (Aw) der der Anzeige-Fahrzeugachse (34, 35) zugeordneten Luftfederbälge (3a, 3b) ist eine Kalibrierfläche (AW0) vorgesehen;b) die Kalibrierfläche (AW0) ist als wirksame Fläche der der Anzeige-Fahrzeugachse zugeordneten Luftfederbälge (3a, 3b) bei einem Kalibrierniveau (h0) als Ist-Niveau bestimmt;c) die Kalibrierfläche (AW0) ist durch eine Funktion (k) korrigiert, welche die Abhängigkeit der der Anzeige-Fahrzeugachse zugeordneten wirksamen Fläche (AW) der Luftfederbälge vom aktuellen Ist-Niveau (h) des Fahrzeugaufbaus beschreibt;d) zur Korrektur der Kalibrierfläche (AW0) wird das aktuelle Ist-Niveau (h) in die Kalibrierflächen-Korrekturfunktion eingesetzt.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass ein Normal-Fahrniveau als Kalibrierniveau (h0) festgelegt ist.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das kleinste Ist-Niveau (hmin) als Kalibrierniveau festgelegt ist.
- Verfahren nach einem oder mehreren der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass die Kalibrierfunktion (k, 9) durch das Verhältnis der wirksamen Fläche (AW) der Luftfederbälge im aktuellen Ist-Niveau (h) zur Kalibrierfläche (AW0) im Kalibrierniveau (h0) bestimmt ist.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass die Kalibrierfunktion (k) als aus Geradenabschnitten gebildeter Polygonzug (10a, 10b) ausgebildet ist, wobei ein Geradenabschnitt (21) durch einen ersten Stützpunkt (27) eines Flächen-Kalibrierwertes an einem ersten Ist-Niveau (hmin) und einen zweiten Stützpunkt (28) eines Flächen-Kalibrierwertes an einem zweiten Ist-Niveau (h0) festgelegt ist, welche den Geradenabschnitt (21) begrenzen, und im Polygonzug mindestens ein Geradenabschnitt (21) vorgesehen ist.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass für den Polygonzug (10a) zwei Geradenabschnitte, ein erster (21) und ein zweiter (22) Geradenabschnitt, vorgesehen sind, wobei für den ersten Geradenabschnitt (21) ein Ist-Niveau im Bereich des kleinsten Ist-Niveaus (hmin) für den ersten Stützpunkt (27) und das Kalibrierniveau (h0) für den zweiten Stützpunkt (28) festgelegt sind, und wobei für den zweiten Geradenabschnitt (22) das Kalibrierniveau (h0) für den ersten Stützpunkt (28) und ein Ist-Niveau im Bereich des größten Ist-Niveaus (hmax) für den zweiten Stützpunkt (29) festgelegt sind.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Anfahrhilfe in einem Land unter Einhaltung der in diesem Land geltenden gesetzlich festgelegten zulässigen Achslasten durchgeführt wird.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Zeit für die Anfahrhilfen-Traktionserhöhung auf eine in einem Land geltende maximale Zeit begrenzt ist.
- Verfahren nach einem oder mehreren der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Anfahrhilfen-Traktionserhöhung auf eine bei der Anfahrhilfe in einem Land geltende maximale Geschwindigkeit des Fahrzeugs begrenzt ist.
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DE102004010548.0A DE102004010548B4 (de) | 2004-03-04 | 2004-03-04 | Fahrzeug-Anfahrhilfe |
DE102004010548 | 2004-03-04 |
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EP1571014A2 true EP1571014A2 (de) | 2005-09-07 |
EP1571014A3 EP1571014A3 (de) | 2009-10-07 |
EP1571014B1 EP1571014B1 (de) | 2012-05-09 |
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EP05000088A Active EP1571014B1 (de) | 2004-03-04 | 2005-01-05 | Fahrzeug-Anfahrhilfe |
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DE (1) | DE102004010548B4 (de) |
Cited By (8)
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EP1788275A2 (de) * | 2005-11-16 | 2007-05-23 | ContiTech Luftfedersysteme GmbH | Tragkraftbestimmung von Luftfederbälgen |
DE102006016989B4 (de) * | 2006-04-11 | 2011-08-18 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH, 80809 | Verfahren zur Niveauregulierung eines Fahrzeugaufbaus durch Regelung der Luftmasse in den Luftbälgen |
WO2012027520A1 (en) * | 2010-08-26 | 2012-03-01 | General Electric Company | Systems and methods for weight transfer in a vehicle |
US8313111B2 (en) | 2010-08-26 | 2012-11-20 | General Electric Company | Systems and methods for weight transfer in a vehicle |
WO2014094915A1 (en) * | 2012-12-21 | 2014-06-26 | John Victor Gano | Active control of a vehicle-ground interface |
CN106494153A (zh) * | 2016-12-19 | 2017-03-15 | 李霜杰 | 一种车辆及其起步辅助驱动*** |
WO2020200484A1 (en) * | 2019-04-05 | 2020-10-08 | Volvo Truck Corporation | A method and a control unit for determining a parameter indicative of a road capability of a road segment supporting a vehicle |
CN113710512A (zh) * | 2019-04-30 | 2021-11-26 | 采埃孚商用车***汉诺威有限公司 | 用于获知机械悬挂的车辆上的车桥负荷的方法 |
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DE102011015510A1 (de) | 2010-06-30 | 2012-01-05 | Wabco Gmbh | Verfahren und Vorrichtung zur Steuerung einer Traktionshilfe eines Fahrzeuges |
US10611206B2 (en) | 2013-03-13 | 2020-04-07 | Hendrickson Usa, L.L.C. | Air suspension control system |
DE102013008656A1 (de) | 2013-05-18 | 2014-11-20 | Wabco Gmbh | Verfahren zur Traktionsregelung eines pneumatisch gefederten Fahrzeugs und Luftfederungssystem zur Durchführung des Verfahrens |
EP3113963B1 (de) | 2014-03-04 | 2018-04-18 | Hendrickson USA, L.L.C. | Feststellbremsenarretierung für automatische hubachse |
DE202014003501U1 (de) | 2014-04-29 | 2014-09-25 | Expresso Deutschland Gmbh | Motorisch angetriebenes Flurförderzeug zur Traktion eines Ladungsträgers |
WO2015176732A1 (de) * | 2014-05-22 | 2015-11-26 | Wabco Gmbh | Verfahren zur traktionsregelung eines pneumatisch gefederten fahrzeugs und luftfederungssystem zur durchführung des verfahrens |
WO2024068012A1 (en) * | 2022-09-30 | 2024-04-04 | Volvo Truck Corporation | Controlling suspension of a set of wheels |
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1788275A3 (de) * | 2005-11-16 | 2010-06-23 | ContiTech Luftfedersysteme GmbH | Tragkraftbestimmung von Luftfederbälgen |
EP1788275A2 (de) * | 2005-11-16 | 2007-05-23 | ContiTech Luftfedersysteme GmbH | Tragkraftbestimmung von Luftfederbälgen |
DE102006016989B4 (de) * | 2006-04-11 | 2011-08-18 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH, 80809 | Verfahren zur Niveauregulierung eines Fahrzeugaufbaus durch Regelung der Luftmasse in den Luftbälgen |
DE102006016989B8 (de) * | 2006-04-11 | 2011-12-15 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Verfahren zur Niveauregulierung eines Fahrzeugaufbaus durch Regelung der Luftmasse in den Luftbälgen |
EA026194B8 (ru) * | 2010-08-26 | 2017-07-31 | Дженерал Электрик Компани | Система и способ перераспределения веса в транспортном средстве |
WO2012027520A1 (en) * | 2010-08-26 | 2012-03-01 | General Electric Company | Systems and methods for weight transfer in a vehicle |
US8313111B2 (en) | 2010-08-26 | 2012-11-20 | General Electric Company | Systems and methods for weight transfer in a vehicle |
AU2011293392B2 (en) * | 2010-08-26 | 2015-08-20 | Ge Global Sourcing Llc | Systems and methods for weight transfer in a vehicle |
EA026194B1 (ru) * | 2010-08-26 | 2017-03-31 | Дженерал Электрик Компани | Система и способ перераспределения веса в транспортном средстве |
WO2014094915A1 (en) * | 2012-12-21 | 2014-06-26 | John Victor Gano | Active control of a vehicle-ground interface |
CN106494153A (zh) * | 2016-12-19 | 2017-03-15 | 李霜杰 | 一种车辆及其起步辅助驱动*** |
CN106494153B (zh) * | 2016-12-19 | 2018-10-26 | 李霜杰 | 一种车辆及其起步辅助驱动*** |
WO2020200484A1 (en) * | 2019-04-05 | 2020-10-08 | Volvo Truck Corporation | A method and a control unit for determining a parameter indicative of a road capability of a road segment supporting a vehicle |
CN113661108A (zh) * | 2019-04-05 | 2021-11-16 | 沃尔沃卡车集团 | 用于确定指示支撑车辆的路段的道路能力的参数的方法和控制单元 |
US11970039B2 (en) | 2019-04-05 | 2024-04-30 | Volvo Truck Corporation | Method and a control unit for determining a parameter indicative of a road capability of a road segment supporting a vehicle |
CN113710512A (zh) * | 2019-04-30 | 2021-11-26 | 采埃孚商用车***汉诺威有限公司 | 用于获知机械悬挂的车辆上的车桥负荷的方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1571014A3 (de) | 2009-10-07 |
DE102004010548A1 (de) | 2005-09-22 |
EP1571014B1 (de) | 2012-05-09 |
DE102004010548B4 (de) | 2022-09-08 |
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